JAMA. 2006 Jan 4;295(1):74-80.
Statins and cancer risk: a meta-analysis.
Dale KM, Coleman CI, Henyan NN, Kluger J, White CM.
University of Connecticut School of Pharmacy, Storrs, Conn, USA.
Context:
Statins are cholesterol-lowering drugs that have been proven in randomized controlled trials to prevent cardiac events. Recent retrospective analyses have suggested that statins also prevent cancer.
Objectives:
To investigate the effect of statin therapy on cancer incidence and cancer death and to analyze the effect of statins on specific cancers and the effect of statin lipophilicity or derivation.
Data Sources:
A systematic literature search of MEDLINE, EMBASE, CINAHL, Web of Science, CANCERLIT, and the Cochrane Systematic Review Database through July 2005 was conducted using specific search terms. A review of cardiology and cancer abstracts and manual review of references was also performed.
Study Selection:
Twenty-seven of the 8943 articles (n = 86,936 participants) initially identified met the inclusion criteria, reporting 26 randomized controlled trials of statins, with a mean duration of follow-up of at least 1 year, enrolling a minimum of 100 patients, and reporting data on either cancer incidence (n = 20 studies) or cancer death (n = 22 studies).
Data Extraction:
All data were independently extracted by 3 investigators using a standardized data abstraction tool. Weighted averages were reported as odds ratios (ORs) with 95% confidence intervals (CIs) using a random-effects model (DerSimonian and Laird methods). Statistical heterogeneity scores were assessed with the Q statistic.
Data Synthesis:
In meta-analyses including 6662 incident cancers and 2407 cancer deaths, statins did not reduce the incidence of cancer (OR, 1.02; 95% CI, 0.97-1.07) or cancer deaths (OR, 1.01; 95% CI, 0.93-1.09). No reductions were noted for any individual cancer type. This null effect on cancer incidence persisted when only hydrophilic, lipophilic, naturally derived, or synthetically derived statins were evaluated.
Conclusions:
Statins have a neutral effect on cancer and cancer death risk in randomized controlled trials. We found that no type of cancer was affected by statin use and no subtype of statin affected the risk of cancer.
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- 1 What will happen to me at my menopause?
- 2 Why does nature put women through the menopause?
- 3 Is life-expectancy changing?
- 4 What happens to my reproductive hormones at the menopause?
- 5 What non-hormonal changes occur at the menopause?
- 6 What problems might I have as a result of my menopause?
- 7 When am I likely to reach my menopause?
- 8 What is a premature menopause?
- 9 What are hot flushes and will HRT reduce them?
- 10 What causes hot flushes and night sweats?
- 11 Can my bladder problems be related to the menopause?
- 12 Can the menopause be associated with psychological problems.
- 13 How long can my menopausal (climacteric) symptoms last?
- 14 Is there a test that will accurately determine when my menopause has occurred?
- 15 Is it normal to experience heavy periods before the menopause?
- 16 How are heavy periods around the time of the menopause treated?
- 17 Is there a need to investigate vaginal bleeding after the menopause (postmenopausal bleeding)?
- 18 What could be the cause of vaginal bleeding after the menopause?
- 19 What is atrophic vaginitis?
- 20 What local genital symptoms can be associated with the menopause?
- 21 I have gone through the menopause and now have some bleeding (postmenopausal bleeding PMB). What will my gynaecologist wish to do?
- 22 Could I have any other long-term medical problems resulting from my menopause?
- 23 What is coronary heart disease?
- 24 What is osteoporosis?
- 25 Where else can I obtain further information?
- 26 Could I have some recommended menopause support groups.
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